What Is Google SGE (AI Overviews) and How Does It Change SEO in South Africa?

Google SGE — Search Generative Experience — is the AI-generated summary that now appears above the normal list of search results, publicly branded "AI Overviews." Instead of ten blue links, Google reads across multiple web pages and writes a direct answer in its own words, citing a small handful of sources beneath it. For South African businesses, this is the single biggest change to search behaviour since mobile-first indexing — because being ranked #1 no longer guarantees being seen, and being cited inside the AI Overview matters more than the position below it.

SGE vs AI Overviews — Same Thing, Different Name

"SGE" was Google's internal codename while the feature was in Search Labs testing during 2023–2024. When it rolled out broadly, Google renamed the public-facing feature "AI Overviews." The two terms are now used interchangeably — SGE by SEO practitioners referring to the underlying technology and roll-out, AI Overviews as the name you'll actually see in Google Search. Both describe the same AI-generated answer box.

How Is This Different From Normal Search Results?

Classic Google search returns a ranked list of pages — the searcher does the reading and comparing. An AI Overview instead reads across several sources, synthesises a written answer, and presents it directly, often before a single link is clicked. The practical difference for a business:

Classic search	AI Overview / SGE
User compares 10 ranked links	User reads one AI-written answer
Ranking position #1–10 all get seen	Only cited sources get seen — often 3–5 of them
Click-through happens before evaluation	Evaluation happens before any click
Optimised with keywords & backlinks	Optimised with structured data & verifiable trust signals

How Does Google SGE Decide Which Sources to Cite?

Google hasn't published an exact formula, but the pattern across thousands of AI Overviews is consistent. Pages that get cited tend to share the same traits:

• Structured data (schema markup) — Article, FAQPage, LocalBusiness and BreadcrumbList schema give the AI machine-readable facts instead of forcing it to guess from layout.
• Direct, declarative answers — a clear statement of fact near the top of the page, rather than a long narrative build-up, gives the AI a ready-made sentence to quote.
• Independently verifiable trust signals — a review rating that matches what's shown on Google Maps, a business address that matches the Google Business Profile, a phone number that's consistent everywhere.
• Topical depth — a site that covers a subject thoroughly across multiple pages reads as more authoritative than a single isolated page.

Does an AI Overview Reduce Website Traffic?

For queries the AI Overview answers completely on its own, yes — some searchers now get their answer without clicking through at all. This is exactly why appearing inside the AI Overview matters so much: it's no longer only a battle for the #1 ranking spot, it's a battle to be one of the handful of sources the AI trusts enough to name. A business absent from the AI Overview isn't just ranked lower — for that query, it may not be seen at all.

What This Means for South African Businesses

Google AI Overviews are live in South African search results today, and adoption is only increasing. Local businesses that still treat SEO purely as keyword density and backlinks are optimising for a search engine that's already changing shape. The businesses showing up inside AI Overviews right now are the ones that have added proper schema markup, written direct answers to the questions their customers actually ask, and built a verifiable, consistent trust profile across the web.

How to Start Optimising for SGE

1. Add structured schema to every important page — Article, FAQPage, LocalBusiness, BreadcrumbList.
2. Rewrite opening paragraphs to state the direct answer first, detail after.
3. Audit NAP consistency — name, address and phone number identical across your website, Google Business Profile and social profiles.
4. Build a genuine review profile and keep it independently verifiable on Google.
5. Publish real depth on the topics core to your business, not just a single service page.

Read more on how these same signals apply to a specific example in How AI Chooses the Best Web Design Company in South Africa, or see exactly how the three related disciplines differ in SEO vs AEO vs GEO — What's the Difference?

What Does SGE / AI Overview Optimisation Cost?

Online By Digital runs AI SEO / SGE / GEO optimisation as a monthly retainer rather than a once-off project, because AI Overview eligibility needs to be monitored and maintained as Google's algorithms and your content both evolve. Pricing is tailored to the size and complexity of a site, starting from:

Frequently Asked Questions